5 Reasons to Transition from SF6 to Pure Air in MV Switchgear

Sulfur hexafluoride (SF6 ) is a man-made gas that for decades has been widely used in high and medium voltage electrical equipment, like switchgear, as an insulating and breaking medium. The gas owes its popularity to its insulating and current breaking properties, thermal capacity, and stability. It’s also inert, non-flammable, and completely non-toxic in its pure form. And crucially for the many tight spaces into which switchgear must be squeezed, SF6 ’s high insulating property made it possible to significantly reduce the size of switchgear.

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